Articles | Volume 34, issue 5
Research article
25 Oct 2022
Research article |  | 25 Oct 2022

Studies on the local structure of the F ∕ OH site in topaz by magic angle spinning nuclear magnetic resonance and Raman spectroscopy

Anselm Loges, Gudrun Scholz, Nader de Sousa Amadeu, Jingjing Shao, Dina Schultze, Jeremy Fuller, Beate Paulus, Franziska Emmerling, Thomas Braun, and Timm John

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Cited articles

Barton, M. D.: The thermodynamic properties of topaz solid solutions and some petrologic applications, Am. Mineral., 67, 956–974, 1982. 
Blöchl, P. E., Jepsen, O., and Andersen, O. K.: Improved tetrahedron method for Brillouin-zone integrations, Phys. Rev. B, 49, 16223–16233,, 1994. 
Chen, J., Lager, G. A., Kunz, M., Hansen, T. C., and Ulmer, P.: A Rietveld refinement using neutron powder diffraction data of a fully deuterated topaz, Al2SiO4(OD)2, Acta Crystallogr. E, 61, i253–i255,, 2005. 
Cory, D. G. and Ritchey, W. M.: Suppression of signals from the probe in bloch decay spectra, J. Magn. Reson., 80, 128–132,, 1988. 
Gatta, G. D., Nestola, F., Bromiley, G. D., and Loose, A.: New insight into crystal chemistry of topaz: A multi-methodological study, Am. Mineral., 91, 1839–1846,, 2006. 
Short summary
We investigated the effect that fluoride and protons have on each other as structural neighbors in the mineral topaz. This was done using spectroscopic methods, which measure the interaction of electromagnetic radiation with matter. The forces between atoms distort the spectroscopic signals, and this distortion can thus be used to understand the corresponding forces and their effect on the physical properties of the mineral.